rough in 0.4
update to this.file api
install grunt-cli before testing
remove expandFiles, grunt does it for us now
use local grunt-cli for npm test
merge changelog from master
documentation
install grunt-cli globally with travis for testing
update deps
Updating to support new this.files property per gruntjs/grunt#606.
Better iterating over multiple targets, warn on nonexistent src or empty dest, add separator option.
prep for rc7
use grunt@0.4.0rc7
Merge branch 'master' of git://github.com/gruntjs/grunt-contrib-handlebars

Conflicts:
	CHANGELOG
	package.json
	tasks/handlebars.js
Update commonjs wrapper for grunt 0.4.x